# shellcheck shell=bash
# shellcheck disable=SC2034 # Expected behavior for themes.

. "$BASH_IT/themes/powerline/powerline.base.bash"

function __powerline_left_segment {
	local OLD_IFS="${IFS}"
	IFS="|"
	# shellcheck disable=SC2206
	local params=($1)
	IFS="${OLD_IFS}"
	local pad_before_segment=" "

	if [[ "${SEGMENTS_AT_LEFT}" -eq 0 ]]; then
		if [[ "${POWERLINE_COMPACT_BEFORE_FIRST_SEGMENT}" -ne 0 ]]; then
			pad_before_segment=""
		fi
	else
		if [[ "${POWERLINE_COMPACT_AFTER_SEPARATOR}" -ne 0 ]]; then
			pad_before_segment=""
		fi
		# Since the previous segment wasn't the last segment, add padding, if needed
		#
		if [[ "${POWERLINE_COMPACT_BEFORE_SEPARATOR}" -eq 0 ]]; then
			LEFT_PROMPT+="$(set_color - "${LAST_SEGMENT_COLOR}") ${normal?}"
		fi
	fi

	LEFT_PROMPT+="$(set_color - "${params[1]}")${pad_before_segment}${params[0]}${normal?}"
	LAST_SEGMENT_COLOR=${params[1]}
	((SEGMENTS_AT_LEFT += 1))
}

function __powerline_prompt_command {
	local last_status="$?" ## always the first

	LEFT_PROMPT=""
	SEGMENTS_AT_LEFT=0
	LAST_SEGMENT_COLOR=""
	PROMPT_AFTER="${POWERLINE_PROMPT_AFTER}"

	_save-and-reload-history "${HISTORY_AUTOSAVE:-0}"

	## left prompt ##
	for segment in $POWERLINE_PROMPT; do
		local info
		info="$(__powerline_"${segment}"_prompt)"
		[[ -n "${info}" ]] && __powerline_left_segment "${info}"
	done

	[[ "${last_status}" -ne 0 ]] && __powerline_left_segment "$(__powerline_last_status_prompt "${last_status}")"

	if [[ -n "${LEFT_PROMPT}" ]] && [[ "${POWERLINE_COMPACT_AFTER_LAST_SEGMENT}" -eq 0 ]]; then
		__powerline_left_last_segment_padding
	fi

	if [[ "${POWERLINE_COMPACT_PROMPT}" -eq 0 ]]; then
		LEFT_PROMPT+=" "
	fi

	PS1="${LEFT_PROMPT}${PROMPT_AFTER}"

	## cleanup ##
	unset LAST_SEGMENT_COLOR \
		LEFT_PROMPT \
		SEGMENTS_AT_LEFT
}
